The consistency and diversity of style is another important category of research style. For the same writer, the consistency of style is mainly derived from the author's personality, personality, temperament, etc., which is often associated with the stability of style. The diversity of style is mainly derived from the differences of the description objects, and also related to the different aspects of subjective emotion that the author objectifies in the object through the creation of activities. The consensus is that diversity is the same, the same is the difference; Diversity is the diversity and diversity of the same. As du fu's basic style is melancholy and depressed, this style characteristic almost runs through his whole life several major creation period, the expression is stability and consistency; But from the wide range and different subjective colors of the poet's creation, it shows the variability and diversity. Wang anshi said: "as for du fu, he was sad and poor, and he was restrained and restrained. Therefore, the poem has plain and simple; The exact person with the mianli; The commander in chief of the armed forces; The man who has suddenly turned over the horses; There is a quiet demure valley hermit; If you have a romantic interest in a prince." It points out the diversity of the same writer's style. Directional orienteering) may be a bit weird for Chinese, but it has been popular in Europe and the United States for years, and activists need maps and compass to read terrain, topography, directions, etc., through unknown places, rich in content and full of fun.